The Seegrotte, near Hinterbrühl, Austria, is an underground cave system with a large grotto located under a former gypsum mine. Visitors can tour the old mine and take a boat ride across the underground lake.
| Identifier (URI) | Rank |
|---|---|
| dbkwik:resource/gnHnd8XfSBNdZVtMHzqKQQ== | 5.88129e-14 |
| dbr:Seegrotte | 5.88129e-14 |